The Bethesda Softworks Forums have a thread on a new utility for The Elder Scrolls V: Skyrim claiming to offer framerate improvements of up to 40% on CPU-constrained systems (thanks Acleacius). Here's the skinny:

This patch will improve your frame rate by up to 40% in all CPU-dependent situations, i.e. especially in cities. It works mostly by rewriting some x87 FPU code and inlining a whole ton of useless getter functions along the critical paths because the developers at Bethesda, for some reason, compiled the game without using any of the optimization flags for release builds.

There has been some confusion about the original dll file and the current one for Script dragon. Script Dragon's dinput8.dll is 592kb The non working TESV Accelerator dinput.dll is 74kb

Zyrxil wrote on Dec 24, 2011, 12:03:This "improvement" also causes most scripted events to not occur, so you shouldn't actually use it.

So you didn't read the whole post, since that was already fixed hours before you posted. Much less the current version I listed in the first post.

While I applaud the quick fix, the fact that it can and did do this is enough to show that the modders don't fully understand what they're messing with and it's enough to make me wary of using it, especially when it's not "needed."

I also don't like using mods whose changelogs say things like "fixed some issues." This is a pretty serious issue that needs to be documented - third party or not.